4. Optics: measuring and testing
  5. By polarized light examination
  6. With birefringent element

Eiji Nakagawa

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Audio signal amplifying circuit

Amplifiers – With semiconductor amplifying device – Including particular power supply circuitry
Patent

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Birefringence measuring apparatus for optical disc substrate

Optics: measuring and testing – By polarized light examination – With birefringent element
Patent

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Competitive video game device, a competition video game...

Amusement devices: games – Including means for processing electronic data – Data storage or retrieval
Reexamination Certificate

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Constant velocity joint, manufacturing method of constant...

Rotary shafts – gudgeons – housings – and flexible couplings for ro – Coupling accommodates drive between members having... – Tripod coupling
Reexamination Certificate

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Device, method and storage medium for displaying penalty...

Amusement devices: games – Including means for processing electronic data – In a game including a simulated projectile
Reexamination Certificate

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Profile ID: LFUS-PAI-P-187587

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